The arts, especially music, should be part of every school's lessons at every grade level. Students would be much smarter if they had some musical experience. They could improve their classroom skills, like paying attention and following directions. People develop all these skills when they learn music. Making music also lets children use their imagination. It provides students with a chance to try out their own ideas.
Music not only makes children better students, but also gives them something positive to do. In a music program, children can be part of a band instead of joining a gang (团伙). Parents can enjoy listening to their children's music instead of seeing them glued to a computer or TV screen. In a school band, students get to be part of a team. They can get along well with old friends and make new friends through music.
Music builds self-confidence, too. It gives children a sense of achievement and success. Making music is something for them to be proud of, and it lets kids practice performing in front of an audience. Music gives children an opportunity for self-expression, and that helps develop their self-confidence.
Once again, music is important because it can make children better students, give them something positive to do, and build their character. That is why music should be offered in every single grade in every school.
小题1:According to the passage, music could make students smarter by _______________.
A．improving their classroom skills and paying attention
B．improving their classroom skills and imagination
C．improving their attention, direction and imagination
D．learning music, making music and trying out their own ideas小题2:What does the underlined phrase "glued to" in the second paragraph mean?
A．unwilling to turn on
B．always looking
C．unwilling to leave
D．always playing小题3:The third paragraph mainly tells us that music could _______________.
A．give children self-expression and self-confidence
B．bring to children achievement and success
C．give children something to be proud of
D．develop children's self-confidence小题4:What's the best title of this passage？
A．Music is a must as a course at school
B．Music builds children's self-confidence
C．Music makes students much smarter
D．Learning music and making music
的值恰为0，即物体只受重力G，水平拉力F，
三个力作用，其合力为0（物体静止），此时绳子c必与绳子a在一条直线上（绳子c的两端受到的力必是绳子所在直线上，因为b对c没有拉力，所以a与c一定在一直线上）即与竖直方向的夹角为60°，再由矢量三角形，已知重力为20N，
, 